package com.hhit.collaborative_learning.community;

import java.io.IOException;
import java.sql.Connection;
import java.sql.ResultSet;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.sf.json.JSONArray;
import net.sf.json.JSONObject;

import com.hhit.collaborative_learning.dao.BBS_TopicLableDao;
import com.hhit.collaborative_learning.dao.impl.BBS_TopicLabelDaoImpl;
import com.hhit.collaborative_learning.utils.DBAccess;
import com.hhit.collaborative_learning.utils.JsonUtil;
import com.hhit.collaborative_learning.utils.ResponseUtil;

/**
 * Servlet implementation class GetBBS_LabelServlet
 */
@WebServlet("/community/GetBBS_LabelServlet")
public class GetBBS_LabelServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public GetBBS_LabelServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doPost(request, response);
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		String cid=request.getParameter("Class_id");
		BBS_TopicLableDao tld = new BBS_TopicLabelDaoImpl();
		Connection con = DBAccess.getInstance().getConn();
		ResultSet rsTopicLabel =tld.query(con, 0, 0, "ClassID","="+ cid, null, null);
		JSONObject jobj = new JSONObject();
		String isSuccess="false";
		try {
			JSONArray topicLabelArray = JsonUtil
					.formatRsToJsonArray(rsTopicLabel);
			if(topicLabelArray.size()!=0){
				isSuccess="true";
			}
			jobj.put("isSuccess",isSuccess);
			jobj.put("topiclabel", topicLabelArray.toString());
			ResponseUtil.write(response, jobj.toString());
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally {
			DBAccess.getInstance().close(con, null, null);
			System.out.println("respons object :" + jobj.toString());
		}
	}

}
